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Name: Dibenzyl Peroxydicarbonate Concentration Range: Content less than or equal to 87%, with water as a stabilizer Appearance: Often a colorless to pale yellow oily liquid or solid, may develop a noticeable odor over time Chemical Formula: C16H14O6, often mixed with variable water proportion to reduce sensitivity CAS Number: 614-45-9 Intended Use: Functions mainly as a polymerization initiator, especially in the plastics and resins industry Common Forms: Commercial supply almost always involves water-containing formulations due to instability of the pure compound
Primary Hazards: Powerful oxidizing agent, decomposes explosively under elevated temperatures or impact Health Hazards: Irritates eyes, skin, mucous membranes; inhalation and ingestion both create acute health concerns Fire and Explosion: Severe fire risk; decomposes energetically under flames or friction Exposure Risks: Direct contact causes redness, pain, blistering; vapor inhalation might trigger headache, dizziness, even loss of consciousness with sufficient exposure Environmental Hazards: Highly toxic to aquatic life if released in significant quantities GHS Classification: Often recognized as an organic peroxide, acute toxicity, environmental hazard
Main Ingredient: Dibenzyl Peroxydicarbonate Proportion: ≤ 87% by weight Stabilizer: Water, usually up to 13% for temperature and shock control Impurities: Residual solvents or minor by-products from manufacturing—frequently benzyl alcohol or related organic compounds
Eye Contact: Allow immediate, gentle rinsing with water for many minutes, keep eyelids apart, avoid rubbing Skin Contact: Remove contaminated clothing, flush skin thoroughly with running water and mild soap Inhalation: Move affected person into fresh air, loosen tight clothing, watch for breathing difficulties and support as needed Ingestion: Rinse mouth, never induce vomiting, seek urgent medical attention Medical Notes: Doctors need to monitor for delayed symptoms, particularly with larger exposures
Suitable Extinguishing Media: Use waterspray, foam, or dry sand—never use water jets or CO2 as primary approach Techniques: Cool unopened containers with water from a safe distance, clear area if safe fire control fails Special Hazards: Decomposition releases irritating, sometimes toxic gases—including carbon monoxide, carbon dioxide, and benzoic acid derivatives Protective Equipment: Firefighters should gear up with self-contained breathing apparatus and full-body protective gear
Evacuation: Restrict access to the spill, guide unprotected individuals away Containment: Prevent entry into sewers, drains, and waterways Cleanup Approach: Scoop bulk material using non-sparking tools, absorb minor spills with inert materials, transfer to sealed disposal drums Ventilation: Ensure robust air movement in affected space Personal Protection: Wear chemical-resistant gloves, splash-proof goggles, and suitable protective clothing throughout the cleanup
Safe Handling: Keep away from sparks, flames, friction, or any ignition sources; avoid sharp impacts Avoidance: Prevent any contact with strong acids, bases, or metals that may accelerate decomposition Storage Conditions: Store only in temperature-controlled, explosion-proof facilities—preferably under 10°C in specialized containers Incompatibilities: Separate from combustible, flammable, or reducing agents Labeling: Containers need clear hazard labeling recognizably denoting peroxide risks
Engineering Controls: Use efficient local exhaust or total facility ventilation wherever handled Personal Respiratory Protection: Select NIOSH-approved respirators for high vapor concentrations Skin/Hand Protection: Use chemical-resistant gloves, such as nitrile or butyl rubber Eye Protection: Splash-proof goggles or face shields in any transfer or open handling situation Additional Gear: Neoprene aprons, disposable coveralls, and closed shoes create a strong secondary shield Hygiene Measures: Wash thoroughly after handling; avoid eating, drinking, or smoking around open product
Physical State: Oily liquid to waxy solid (depends on water content and temperature) Odor: Slightly aromatic, becoming pungent with decomposition Melting Point: Ranges from approximately 26°C to 34°C Solubility: Practically insoluble in water, soluble in many organic solvents Decomposition Temperature: Rapid reaction above 50°C Vapor Pressure: Low at ambient temperatures but rises with heat
Chemical Stability: Unstable at ambient or elevated temperatures without water content; risk climbs steeply if dried out Reactivity: Strong oxidizer, reacts dangerously with reducing agents, acids, bases, and many organic materials Decomposition Products: Generates carbon dioxide, carbon monoxide, benzoic acid, possibly benzyl chloride among others
Acute Toxicity: Skin and eye irritant, risk of inhalation toxicity especially with large uncontrolled releases Chronic Effects: No strong evidence for cumulative health damage with rare or small exposures, but prolonged contact not recommended Symptoms of Exposure: Redness, burning sensation, headache, nausea, coughing, in severe cases neurological symptoms Carcinogenicity: Lack of meaningful evidence for carcinogenicity based on available studies
Aquatic Toxicity: Harmful to aquatic organisms even at very low concentrations Degradation: Breaks down relatively quickly in high-temperature or direct sunlight environments, but by-products persist Bioaccumulation: No strong evidence for significant build-up in food chains Soil Mobility: Expected to remain mostly on surface soils if spilled
Waste Handling: Must never deposit in general landfill or sewers, regarded as hazardous waste Recommended Disposal: Send only to facilities permitted for energetic chemical destruction, such as incineration under controlled conditions Container Disposal: Residue-bearing containers require professional cleaning or destruction
Classification: Transported as a dangerous good under most international frameworks due to peroxide and explosive hazards Packing Requirements: Use specialized, vented containers, segregated from other chemicals and physical stress Labels: Prominent hazard pictograms for organic peroxides and acute toxicity Accident Response: Emergency crews need immediate access to spill control kits and remote removal or ventilation capabilities
Global Harmonization: Subject to regulation under numerous frameworks including OSHA, REACH, and GHS for hazardous chemicals Restrictions: Many regions limit allowable concentrations in commerce, especially in bulk shipments Workplace Controls: Facilities required to maintain written risk assessments, training, and emergency response protocols
